Name: As surpreendentes ideias de David Keith sobre a mudança climática
Uploaded: 2007-11-13T01:44:00Z
Duration: 15 min 39 s
Description: O cientista ambiental David Keith propõe um meio barato, eficiente e chocante para discutir a mudança climática: e se nós injetássemos uma enorme nuvem de cinzas na atmosfera para desviar a luz do sol e o calor?

O cientista ambiental David Keith propõe um meio barato, eficiente e chocante para discutir a mudança climática: e se nós injetássemos uma enorme nuvem de cinzas na atmosfera para desviar a luz do sol e o calor?

As surpreendentes ideias de David Keith sobre a mudança climática

Injecting particles into the upper atmosphere could cool the planet quickly and at a fraction of global GDP, just as volcanic eruptions have temporarily done in the past. Although this approach could offset rising CO2 levels almost instantly, it introduces side effects like potential ozone depletion and moral hazards that could undermine emissions reduction efforts. As the pace of climate change accelerates and traditional solutions stall, society must openly debate the risks and ethics of radical interventions now possible through science.

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David Keith: As surpreendentes ideias de David Keith sobre a mudança climática